Dexcel
Crypto processing platform
Project overview
DEXEL crypto processing system: acceptance of USDT payments via an embeddable widget, automatic selection of a P2P trader and reservation of payment details, fiat confirmation (SMS/Push), USDT transfer, blockchain monitoring, fees, admin panel, API, and webhooks.
Objective
DEXEL crypto processing system: acceptance of USDT payments via an embeddable widget, automatic selection of a P2P trader and reservation of payment details, fiat confirmation (SMS/Push), USDT transfer, blockchain monitoring, fees, admin panel, API, and webhooks.
Industries
- DEXEL crypto processing system: acceptance of USDT payments via an embeddable widget, automatic selection of a P2P trader and reservation of payment details, fiat confirmation (SMS/Push), USDT transfer, blockchain monitoring, fees, admin panel, API, and webhooks.
Services provided
- DEXEL crypto processing system: acceptance of USDT payments via an embeddable widget, automatic selection of a P2P trader and reservation of payment details, fiat confirmation (SMS/Push), USDT transfer, blockchain monitoring, fees, admin panel, API, and webhooks.
What we built
- Technical specification: roles, request statuses, full payment flow, fee calculation, notifications, reporting, tickets, admin procedures.
- Architecture and data model: entities Users / Requests / Transactions / Wallets / PaymentDetails / Webhooks / Logs and their relationships; timeouts and status transitions; RBAC.
- API & Webhooks: principles, versions, response/error formats, pagination/filters; endpoint groups for merchant, trader, widget, and admin panel; HMAC signing and retries.
- Blockchain integration: support for TRC-20 (with extensibility to ERC-20 / BEP-20 / TON), confirmation monitoring, system wallets (hot / commission / cold), balance alerts.
- Fiat processing: auto-confirmation flow via SMS/Push through an Android agent; parsing templates; matching with requests.
- Security: 2FA (TOTP/SMS), trader KYC, password policies, HTTPS, rate limiting, CSRF, session management, action audit.
- Payment widget: tokenization, real-time statuses, trader payment detail delivery, timers, customization.
- UI/UX mockups: dashboard, widget/API keys, settings and notifications, transaction history, tickets, policies/legal pages — screens and visual concepts prepared (see screenshots).
- Admin panel: management of users, KYC/payment detail verification, requests/transactions, system settings, logs, roles, wallet monitoring.
- Reporting: specifications for user stories and admin reports, CSV/Excel export.
- Project artifacts: flow diagrams, scenario checklists, logging and storage requirements, network expansion plan.
Team
FreeBlock / From idea to launch
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No specification needed. Tell us what you’d like to build or improve — we’ll work out the next step together.
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